Mitsubishi Electric FR-D720 K Series Instruction Manual page 162

Frequency setting by analog input (terminal 2, 4)
(4) Frequency setting signal (current) bias/gain adjustment method
(a) Method to adjust any point by application of a voltage (current) across terminals 2 and 5 (4 and 5).
Operation
1.
Confirm the operation status indicator and
operation mode indicator
 The inverter should be at a stop.
 The inverter should be in the PU operation
mode.
(Using )
2.
Press to choose the parameter setting
mode.
3.
Turn until "
4.
Press to display "
5.
Turn until "
appears.
Set to C4 Terminal 2 frequency setting gain.
6.
Press to display the analog voltage
(current) value (%).
7.
Apply a 5V (20mA) voltage (current).
(Turn the external potentiometer connected
across terminals 2-5 (across terminals 4-5) to
maximum (any position).)
NOTE
After performing operation in step 6, do not touch
8.
Press to set.
Turn
Press
Press
REMARKS
 If the frequency meter (display meter) connected across the terminals FM does not indicate exactly 60Hz, set the calibration
parameter C0 FM terminal calibration. (Refer to page 137.)
 If the gain and bias of frequency setting voltage (current) are too close, an error ("
158
" appears.
".
" (" ")
to read another parameter.
to return to the " " indication (step 4).
twice to show the next parameter ("
Display
PRM indicator is lit.
(The parameter number read previously appears.)
C0 to C25 settings
are enabled.
Terminal 2 input is Terminal 4 input is
selected selected
Analog voltage (current)
value (%) across terminals 2
and 5 (across terminals 4
and 5)

 The value is nearly 100 (%) in the maximum position of
the potentiometer.
until completion of calibration.
Terminal 2 input is

selected
Alternating...Parameter setting complete.
 The value is nearly 100 (%) in the maximum position of
the potentiometer.
").
Terminal 4 input is
selected
") may be displayed at setting.